JP5894462B2 - レーザー接合用中間部材及びレーザー光を用いた接合方法 - Google Patents
レーザー接合用中間部材及びレーザー光を用いた接合方法 Download PDFInfo
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- JP5894462B2 JP5894462B2 JP2012040446A JP2012040446A JP5894462B2 JP 5894462 B2 JP5894462 B2 JP 5894462B2 JP 2012040446 A JP2012040446 A JP 2012040446A JP 2012040446 A JP2012040446 A JP 2012040446A JP 5894462 B2 JP5894462 B2 JP 5894462B2
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- laser
- intermediate member
- joining
- bonding
- heat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Laser Beam Processing (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
第1部材について
第1部材10は、ナイロン66(ユニチカ株式会社製 マラニールA226)の板材とした。厚さは5mmで、寸法は100mm×100mmである。第1部材10は乳白色であるがレーザー光を十分に透過することができる。また、第1部材10の熱伝導率は、0.23W・m−1・K−1であった。
第2部材20は、アルミニウム合金(A5052)の板材とした。厚さは10mmで、寸法は100mm×100mmである。第2部材20の表面には硬質アルマイト処理を施した。この第2部材20の熱伝導率は、236W・m−1・K−1であった。
レーザー接合用中間部材1の主成分はナイロン6(ユニチカ株式会社製 A1030BRL)であり、これにカーボンブラック(エボニックデグサジャパン株式会社製 PRINTEK 35)を0.5重量%、ポリアミド12系エラストマー(宇部興産株式会社製 UBESTAXPA9035X1)を30重量%加えて混練、分散してコンパウンドを作製した。このコンパウンドをテフロン(登録商標)シートで挟んで400μmのスペーサーを用いて成形するとともに、熱板で加熱して溶融した後、冷却して400μmのレーザー接合用中間部材1を得た。レーザー接合用中間部材1は、幅が10mmで、長さが100mmの帯状とした。
まず、レーザー接合用中間部材1を第2部材20に振動溶着等により接着する。
レーザー接合用中間部材1を常温まで冷却した後、引っ張り試験を行った。引っ張り試験装置は島津製作所製のオートグラフAG−ISを使用し、第1部材10の端部(図1の左端部)と第2部材20の端部(図1の右端部)とをそれぞれ挟んで引っ張り試験装置に固定し、5mm/分の速度で図1の左右方向に引っ張った。この引っ張り試験は、ヒートサイクル前と、ヒートサイクル後との両方で行った。ヒートサイクルとは、−20℃の雰囲気中に24時間放置した後、常温雰囲気中に3時間放置し、その後、80℃の雰囲気中に24時間放置するというサイクルを3回繰り返す処理である。
第1部材10及び第2部材20は実施例1と同じである。
第1部材10及び第2部材20は実施例1と同じである。
第1部材10及び第2部材20は実施例1と同じである。
10 第1部材
20 第2部材
L レーザー光
Claims (1)
- レーザー光透過性を有する第1部材と、該第1部材よりも熱伝導率の高い第2部材との間に、レーザー接合用中間部材を配置して該第1部材及び該第2部材を接合するレーザー光を用いた接合方法において、
厚さが300μm以上に設定された上記レーザー接合用中間部材を上記第2部材に、超音波溶着または振動溶着により接合し、
その後、上記レーザー接合用中間部材の上記第2部材とは反対側に上記第1部材を配置して該第1部材側からレーザー光を照射して上記レーザー接合用中間部材を溶融させ、
しかる後、上記レーザー接合用中間部材を冷却することを特徴とするレーザー光を用いた接合方法。
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